Kaolinite in a sentence

At the Huntley clay mine white chalky clay called kaolinite is mined; the kaolinite is exposed on the resurgent dome and appears as a brilliant white band.

Because of the observed very slow crystallization rates of kaolinite from solution at room temperature Fripiat and Herbillon (1971) postulated the existence of high activation energies in the low-temperature nucleation of kaolinite.

As a result, kaolinite does not swell in water and has a low specific surface area, and as almost no isomorphous substitution has occurred it has a low CEC.

Based on the lack of convincing results in their own experiments, La Iglesia and Van Oosterwijk-Gastuche (1978) had to conclude, however, that there were other, still unknown, factors involved in the low-temperature nucleation of kaolinite.

Between 100 °C and about convert, any remaining liquid water is expelled from kaolinite.

Chlorite does not swell and it has low CEC.sfnsfn *Kaolinite is very common, highly weathered clay, and more common than montmorillonite in acid soils.

Clays and Clay Minerals, vol.26, pp.397-408 thought that the conditions under which kaolinite will nucleate can be deduced from stability diagrams based as these are on dissolution data.

DeKimpe (1969); DeKimpe, C. R. (1969): Crystallization of kaolinite at low temperature from an alumina-silicic gel.

Dyar and Gunter, p. 110 The kaolinite-serpentine group consists of T-O stacks (the 1:1 clay minerals); their hardness ranges from 2 to 4, as the sheets are held by hydrogen bonds.

Field evidence illustrating the importance of the removal of water from the kaolinite reaction has been supplied by Gastuche and DeKimpe (1962).

If this would be the only requirement, large amounts of kaolinite could be harvested simply by adding gibbsite powder to a silica solution.

Laboratory syntheses of kaolinite at room temperature and atmospheric pressure have been described by DeKimpe et al.

No more than half the clay content should be expansive clays with the remainder non-expansive illite or kaolinite.

Only in the areas with distinct seasonal alternations between wet and dry conditions kaolinite was found.

The plant offered two advantages: (i) energy requirements were 40% less than plants using the Hall–Héroult process, and (ii) the more accessible kaolinite (instead of bauxite and cryolite ) was used for feedstock.

These two groups of minerals are subgrouped by octahedral occupation; specifically, kaolinite and pyrophyllite are dioctahedral whereas serpentine and talc trioctahedral.

Too much expansive clay results in uneven drying through the brick resulting in cracking, while too much kaolinite will make a weak brick.

Where rainfall is high, acid soils selectively leach more silica than alumina from the original clays, leaving kaolinite.

While studying soil formation on a basaltic rock in Kivu ( Zaïre ), Gastuche and DeKimpe noted how the occurrence of kaolinite depended on the "degrée de drainage" of the area involved.